Name________________________ Date___________ Period_______ Solubility Graph Worksheet Refer the graph to answer the following questions. 1. Why do the temperatures on the graph only go from 0º C to 100º C? 2. Which substance is most soluble at 60º C? 3. Which two substances have the same solubility at 80º C? 4. Which substance’s solubility changes the most from 0º C to 100º C? 5. Which substance’s solubility changes the least from 0º C to 100º C? 6. What is the solubility of potassium nitrate at 90º C? 7. At what temperature does potassium iodide have a solubility of 150 g/ 100 cm3 water? 8. You have a solution of sodium nitrate containing 140 g at 65º C. Is the solution saturated, unsaturated, or supersaturated? 9. You have a solution of potassium chlorate containing 4 g at 65º C. How many additional grams of solute must be added to it, to make the solution saturated? 10. A solution of potassium iodide at 70º C contains 200 g of dissolved solute in 100 cm3 water. The solution is allowed to cool. At what new temperature would crystals begin to start forming?